524 N. C. AGR. EXP. STA. BUL. 239 
differs from the latter and from most other genera in the more strongly convex 
anterior pronotal margin, the pronotum appearing inserted into the head, in 
dorsal view. It differs from Juliaca in the long connective of the male; the 
structure does not extend posteriorly as far as the style apex in Juliaca. 
Rotigonalia is also close to Plerogonalia, new genus, as indicated in the descrip- 
tion of the latter. 
I have studied the male bestohyPe of Cyclogonia rudicula var. concedula 
Melichar (fig. 431). 
There is confusion relating to the epithet /imbatula. I have seen a specimen 
labeled ‘“‘limbatula Guérin det. Breddin.” No such Guérin name was 
catalogued by Metcalf. Osborn’s (1926b: 211) treatment of Cicadella limbatula 
(Germar) is probably either a lapsus calami or a misreading of ‘“‘Guérin” on 
that label. Melichar (1926a: 349) realized that limbatula had not been 
published, and treated it as a new species. Osborn’s action constitutes a 
description of a new species under the International Rules, and limbatula 
Osborn competes with limbatula Melichar, both 1926, the junior name to be 
both a subjective synonym and a secondary homonym. The Osborn name, 
published on March 11, 1926 was prior to the Melichar name. In addition to 
the specimen (without abdomen) with the Guérin manuscript name, I have 
also studied the lectotype of limbatula Melichar. 
SPECIES OF ROTIGONALIA 
concedula (Melichar), 1926a:349 (Cyclogonta rudicula var.). New combination. Peru, 
Bolivia. 
limbatula (Osborn), 1926b:211 (Cicadella). Costa Rica, Fr. Guiana, Ecuador, S. Brazil. 
New combination. 
limbatula (Distant), 1908a:531 ( Tettigonia). Nomen nudum. 
limbatula (Melichar), 1926a:349 (Cyclogonia). New synonymy. 
KEY TO SPECIES OF ROTIGONALIA 
Clypellus inflated at its base (Peru, Ecuador) 
concedula (Melichar) (fig. 431) 
Clypellus not inflated (Costa Rica, Ecuador, Fr. Guiana, S. Brazil) 
limbatula (Osborn) (fig. 432) 
68. GEITOGONALIA, New Genus 
FicureE 433 
Type-species: Tettigonia quatuordecimmaculata Taschenberg. 
Length of male 8.1 mm. 
Head moderately produced, its median length two-thirds interocular width 
and slightly more than four-tenths transocular width, anterior margin broadly 
rounded in dorsal view, without a carina at transition from crown to face, 
ocelli located slightly behind a line between anterior eye angles, each slightly 
closer to adjacent anterior eye angle than to median line of crown, surface 
with a shallow concavity before ocelli, lateral clypeal sutures extending onto 
